TimeCalc

TimeCalc is a calculator which allows you to perform operations with dates and time, such as adding, subtracting and time fractioning.

In order to understand how to use it, it's necessary to learn about its data types and allowed operations for each of them.

Data Types

Date: A regular date in the calendar.
Time (Year, Month e Day): number of years, months and days.
Fraction: numerator and denominator

Operations

Date + Time = Date
Date – Time = Date
Time – Fraction = Time (ex: 1 year – 1/3 = 8 months)
Time + Fraction = Time (ex: 1 year + 1/3 = 1 year e 4 months)
Time * Fraction = Time (ex: 1 year * 1/3 = 4 months)
Date – Date = Time (em days)